Alaska Air Service

Cessna 401

At 0630 akdt the pilot obtained a weather briefing for the flight which forecast VFR with occasional marginal conditions along the route of flight. At 0704, the pilot obtained an updated briefing at which time the destination of Cantwell was reported IFR. At 0731 akdt, the aircraft departed Anchorage International on a company VFR flight. No further communication took place with the aircraft. The aircraft did not reach Cantwell. An extensive search revealed no trace of the aircraft or its occupants.